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  1. Wallowitz

    NFPA 79, external power source and estop circuit

    From NFPA 79, 13.2.4 requires that orange is to be used for conductors that do not de-energize when a disconnect is switched off. How does that reconcile with a production line that has multiple machines but only one central estop string? Do all of the estop conductors have to be orange in the...
  2. Wallowitz

    NFPA 79:external power vs estop string

    From NFPA 79, 13.2.4 requires that orange is to be used for conductors that do not de-energize when a disconnect is switched off. How does that reconcile with a production line that has multiple machines but only one central estop string. Do all of the estop conductors have to be orange in the...

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